I did a dry brush mani today. They're so fun and simple to do. You basically remove almost all of the polish from the brush and apply the small amount of colour that's left on the brush to chosen parts of you nails. You then repeat this with different colours. You may have to repeat this a few times to reach full coverage and avoid VNL. The best is to use highly pigmented colours (one coaters), but colours where you have to apply the polish on the same spot twice, or more, often blend seamlessly and make the finished manicure look smoother.
For this mani I only used holographic polishes from Colors by Llarowe. The ones I've used are Young Turks, Seahawks Lime, Gemini Rising, My Own Private Paradise, Refresh...ing! and Love You Forever.